AudioCodes Mediant 800B User Manual page 887

User's Manual
Parameter
Clock
[TDMBusFallbackClock]
Web/EMS: TDM Bus Net
Reference Speed
[TDMBusNetrefSpeed]
Web: TDM Bus PSTN Auto
FallBack Clock
EMS: TDM Bus Auto Fall
Back Enable
[TDMBusPSTNAutoClockEn
able]
Web: TDM Bus PSTN Auto
Clock Reverting
EMS: TDM Bus Auto Fall
Back Reverting Enable
[TDMBusPSTNAutoClockRe
vertingEnable]
Web: Auto Clock Trunk
Priority
EMS: Auto Trunk Priority
CLI: clock-priority
[AutoClockTrunkPriority]
Version 6.8

[8] H.110_A

[9] H.110_B

[10] NetReference1

[11] NetReference2
Defines the NetRef frequency (for both generation and
synchronization).

[0] 8 kHz (default)

[1] 1.544 MHz

[2] 2.048 MHz
Enables the PSTN trunk Auto-Fallback Clock feature.

[0] Disable = (Default) Recovers the clock from the E1/T1 line
defined by the parameter TDMBusLocalReference.

[1] Enable = Recovers the clock from any connected
synchronized slave E1/T1 line. If this trunk loses its
synchronization, the device attempts to recover the clock from the
next trunk. Note that initially, the device attempts to recover the
clock from the trunk defined by the parameter
TDMBusLocalReference.
Notes:

For this parameter to take effect, a device reset is required.

This parameter is relevant only if the parameter
TDMBusClockSource is set to 4.
Enables the PSTN trunk Auto-Fallback Reverting feature. If enabled
and a trunk returning to service has an AutoClockTrunkPriority
parameter value that is higher than the priority of the local reference
trunk (set in the TDMBusLocalReference parameter), the local
reference reverts to the trunk with the higher priority that has
returned to service for the device's clock source.

[0] Disable (default)

[1] Enable
Notes:

For this parameter to take effect, a device reset is required.

This parameter is applicable only when the
TDMBusPSTNAutoClockEnable parameter is set to 1.
Defines the trunk priority for auto-clock fallback (per trunk
parameter).
The valid range is 0 to 100, where 0 (default) is the highest priority
and 100 indicates that the device does not perform a fallback to the
trunk (typically, used to mark untrusted source of clock).
Note: Fallback is enabled when the TDMBusPSTNAutoClockEnable
parameter is set to 1.
887
56. Configuration Parameters Reference
Description
Mediant 800B Gateway and E-SBC